Package Exports

cycle-audio-graph

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (cycle-audio-graph) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

cycle-audio-graph

Audio graph driver for Cycle.js based on virtual-audio-graph

Installation

npm i -S cycle-audio-graph

Usage

makeAudioGraphDriver

The default export of cycle-audio-graph is makeAudioGraphDriver which takes an optional configuration object with two optional key-value pairs:

import makeAudioGraphDriver from 'cycle-audio-graph';

const audioContext = new AudioContext();

// if no configuration object is provided the defaults
// detailed below will be used
makeAudioGraphDriver({
  // if audioContext is not provided then cycle-audio-graph
  // will attempt to construct its own instance
  audioContext,
  // output could be any valid AudioNode destination.
  // If not provided then cycle-audio-graph will use
  // the destination of its audioContext instance
  output: audioContext.destination,
});

Very Basic Example

import {run} from '@cycle/core';
import makeAudioGraphDriver from 'cycle-audio-graph';

const audioContext = new AudioContext();

const main = responses => {
  // ...
  virtualNodeParams$ = example$.map(_ => {
    // ...
    const {currentTime} = audioContext;
    return {
      0: ['gain', 'output', {gain: 0.2}],
      1: ['oscillator', 0, {type: 'square',
                            frequency: 440,
                            startTime: currentTime + 1,
                            stopTime: currentTime + 2}],
    };
  });
  return {
    audioGraph: virtualNodeParams$,
    // ... etc.
  };
};

const drivers = {
  audioGraph: makeAudioGraphDriver({audioContext,
                                    output: audioContext.destination}),
  // ... etc.
};

run(main, drivers);

virtual-audio-graph

For more info on the virtualNodeParams objects check out the documentation for virtual-audio-graph